Terminate last execution using script - google-apps-script

Question

I have been testing a script for nearly 24 hours, the idea was that if certain cells were edited within the sheet, then the trigger would wait 5 minutes before resetting the values within those cells.
However when testing it became apparent that with many people using this sheet, the trigger was executing many times and sometimes the data edited by a user would reset within seconds because of a earlier execution.
To combat this I thought of putting a few lines of script in there, to cancel any previous executions of this function that is still running.
However with being a newbie to script and not having the knowledge I hope to gain, finding the information to start that script is proving difficult.
This is what I have so far
function RESET(e) {
const ar = e.range;
const as = ar.getSheet();
const cells = ["B3","E3"]; // add cells you want to be edited to activate the script
// if C3 or E3 is edited, wait for 300 seconds
if (as.getName()=="Gauge" && cells.includes(ar.getA1Notation())){
Utilities.sleep(300000);
as.getRange("B3").setValue("ALL");
as.getRange("E3").setValue("ALL");
}
}

Answer 1

You can use a document lock]1 to guard the RESET function running at the same time for multiple users, but this will probably lead to timeouts.
A better approach would be to create a time-driven trigger with a delay of 5 minutes inside the RESET function. When it fires, clear the values in B3/E3 or do any other work required.
Make sure that you clear previous triggers before you create new one, so that at any time only single trigger is active. If there is no user activity for 5 minutes, it will eventually run.
const SHEET = "Gauge"
// make sure to create as onEdit installable trigger, not a simple trigger
function onInstallableEdit(e) {
const ar = e.range;
const as = ar.getSheet();
const cells = ["B3","E3"]; // add cells you want to be edited to activate the script
// if C3 or E3 is edited, wait for 300 seconds
if (as.getName()==SHEET && cells.includes(ar.getA1Notation())){
const lock = LockService.getDocumentLock()
try{
lock.waitLock(10000)
// delete previous triggers, if any
ScriptApp.getProjectTriggers().filter(t=>t.getHandlerFunction()===myHandler.name).forEach(t=>ScriptApp.deleteTrigger(t))
// create new trigger to be fired after 5 minutes
ScriptApp.newTrigger(myHandler.name).timeBased().after(5*60*1000).create()
} catch(e){
console.warn(e)
}
}
}
function myHandler(){
const as = SpreadsheetApp.getActive().getSheetByName(SHEET)
as.getRange("B3").setValue("ALL");
as.getRange("E3").setValue("ALL");
}